جستجوی مقالات مرتبط با کلیدواژه « بیوسوپرفسفات » در نشریات گروه « زراعت »

Biofertilizers play a fundamental role in sustainable agriculture and salicylic acid reduces the harmful effects of stress. Rainfed farming of chickpeas in western Iran is often under drought stress. In order to investigate the effect of foliar application of salicylic acid (non-application, 0.5 and 1 millimolar) and biofertilizers (non-application of biofertilizers, biosuperphosphate bacteria, biosulfur bacteria, Rhizobium bacterium, and mycorrhizal fungus) on yield of two chickpea cultivars (Bivanij and Azad) a factorial experiment based on randomized complete block design with three replication was conducted in two years (2016-2017) in Kermanshah under rainfed conditions. The studied traits were number of pods per plant, number of empty pod per plant, number of seeds per plant, 100 seed weight, fertile pod, grain yield, dry matter yield, and harvest index. The results showed that triple interaction of cultivars × salicylic acid × biofertilizers had a significant effect on all traits except number of seeds per pod. Bivanij cultivar had the highest grain yield (in the first and second year were 1821 and 1875 kg.ha-1, respectively), dry matter yield (in the first and second year were 4076 and 4414 kg.ha-1, respectively) and number of seeds per plant (18.8) in 0.5 mM Salicylic acid and Rhizobium bacterium. Application of Salicylic acid and biofertilizer could be recommended in rainfed farming of chickpea to increase drought tolerance, yield, and reduce chemical fertilizer application resulting in sustainable agriculture.

In order to study the effects of manure and phosphate solubilizing biofertilizer on growth, yield and essential oil quality of dragonhead, an experiment was conducted as factorial experiment contain manure (0, 10 and 20 ton/ha) and biosuperphosphat biofertilizer (non-inoculated and inoculated seeds), in the base of randomized complete blocks design with three replications at research field of Agriculture Company of Ran in Firouzkuh of Iran in 2015. The results showed that the highest flowering shoot no./plant in application of 10 t/ha manure and the highest dry weight of plant and essential oil yield in applying 20 ton/ha manure were obtained. Biosuperphosphat biofertilizer showed significant effects on studied traits, as the highest flowering shoot no./plant, dry weight of plant, essential oil yield and geraniol percent and linalool percent in treatment of application of biosuperphosphat (inoculated seeds) were obtained. Also, the intractions effect of factors on yield of flowering shoot, essential oil content and geranyl acetate percent in essential oil were significant, as the highest yield of flowering shoot in treatment of 20 t/ha manure and without application of biosuperphosphat and the maximum essential oil content in treatment of 10 t/ha manure and application of biosuperphosphat and the highest geranyl acetate percent in essential oil in treatment of 20 t/ha manure and application of biosuperphosphat were obtained.

The present research was accomplished in order to investigate the effects of different fertilizers and corm size on corm characteristics of saffron, in Mahvelate, during 2012. The experiment was conducted as a split plot factorial design with four replications. Treatments were comprised of manure and chemical fertilizers (in three levels of 100%, 50% and control) considered as main plot, and combination of biological fertilizer (in three levels of nitroxin, bio-superphosphate and control) and mother corm weight (in three levels of 4-6, 8-10 and 12-14 g) as sub plot. Result showed that application of manure and chemical fertilizers increased number and weight of daughter corm significantly, but had no significant effect on corm diameter. Use of biological fertilizers caused weight of corm to be increased by 3.7%, whereas didn’t change the number of corm and corm diameter. The highest number, diameter and weight of daughter corm was also recorded btained with use of the largest mother corm. Since big corms producted more yield in next years, it is suggested that use of big corms in saffron production. Also use of biological fertilizers caused improvement characteristics of dauther corm and reduction use of manure and chemical fertilizers.

Organic manure and bio-fertilizer are different input from chemical or mineral fertilizers due to source of supplying of several nutrients an improving soil quality as well. In order to investigate the effects of different fertilizers and corm size on yield and yield components of saffron, an experiment was conducted as split plot factorial layout based on a complete randomized block design with four replications under field condition in Mahvelate during growing season of 2011-2012. In this study, manure and chemical fertilizers (in three levels of 0, 50 and 100%) considered as main factor and combination of biological fertilizer (in three levels such as nitroxin, bio superphosphate and without it) and corm weight (in three levels of 4-6, 8-10 and 12-14 g) were considered as sub factor. The results showed that the use of manure and chemical fertilizers had significant effects on fresh weight of flowers, length of stigma and style and number of flowers in saffron as well. These traits increased when fertilizer levels were enhanced. Results revealed that fresh weight of flower, flower number and length of stigma and style of saffron were significantly increased by increasing in corm size. Studying on the effect of biological fertilizers on saffron traits indicated that the most number of flowers obtained when nitroxin, bio superphosphate and no biological fertilizers were applied, respectively. Application of nitroxin fertilizer improved fresh weight of flowers, but application of bio superphosphat fertilizer had no significant effect on this traits. Style and stigma lengths of saffron were not significantly affected by application of biological fertilizers.